Photocatalytic Properties of Titanate Nanotube Powders Prepared by Alkaline Hydrothermal Method

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Abstract:

This paper reports the photocatalytic activities of titanate nanotubes (TNTs) synthesized using different methods and compares them with that of P25. Rhodamine B was selected as the organic compound to be decomposed by the microwave/UV/photocatalyst hybrid process. The as-prepared TNT had titanate crystalline structure, whereas the TNT calcined at 723 K was phase-transformed into anatase structure. When the as-prepared TNT was ion-exchanged using HCl, Na+ content was reduced from 8.36 wt% to 0.03 wt%. The ion-exchanged TNT showed the highest photocatalytic activity among the TNTs tested in this study, but it was lower than that of P25.

Keywords: ALKALINE HYDROTHERMAL PROCESS; PHOTOCATALYTIC ACTIVITY; TITANATE NANOTUBE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2011.4772

Publication date: August 1, 2011

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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